SIG Sauer SIG AIR MPX Spring Rifle Kit w/ P226 Spring Pistol MPX Airsoft Spring Rifle Single-shot Removable 3-position adjustable stock 26-round drop free magazine, 500 round reservoir Molded polymer construction Ambidextrous manual safety Max. velocity: 300 FPS Picatinny optics rail Front and rear flip-up sights Picatinny handguard accessory rails Length (stock removed): 13.78", 17.91"-22.44" with adjustable stock P226 Airsoft Spring Pistol Single-shot 12-round magazine capacity Molded polymer construction Max. velocity: 270 FPS Rear slide serrations Fixed front and rear white dot sights Picatinny accessory rail under muzzle